/Engine/Plugins/Experimental/VirtualCamera/Source/VirtualCamera/Public/LevelSequence/LevelSequencePlaybackController.h
The FrameNumber of the sequence's start.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="VirtualCamera | Sequencer | Playback") [FFrameNumber](API\Runtime\Core\Misc\FFrameNumber) GetCurrentSequencePlaybackStart() const